[ApiAuthorization] Update to latest oidc-client and IdentityServer4 versions

[ApiAuthorization] Updates dependency versions
* Updates to the latest version of Identity Server.
* Updates to the latest version of oidc-client.
* Removes unncessary code from the templates.
* Updates EF migrations.
* Removes unnecessary ref assembly.

Author: javiercn

eng/ProjectReferences.props

@@ -5,6 +5,7 @@
 -->
 <Project>
   <ItemGroup>
+    <ProjectReferenceProvider Include="Microsoft.AspNetCore.ApiAuthorization.IdentityServer" ProjectPath="$(RepoRoot)src\Identity\ApiAuthorization.IdentityServer\src\Microsoft.AspNetCore.ApiAuthorization.IdentityServer.csproj"  />
     <ProjectReferenceProvider Include="Microsoft.AspNetCore.Identity.Specification.Tests" ProjectPath="$(RepoRoot)src\Identity\Specification.Tests\src\Microsoft.AspNetCore.Identity.Specification.Tests.csproj"  />
     <ProjectReferenceProvider Include="Microsoft.Web.Xdt.Extensions" ProjectPath="$(RepoRoot)src\SiteExtensions\Microsoft.Web.Xdt.Extensions\src\Microsoft.Web.Xdt.Extensions.csproj"  />
     <ProjectReferenceProvider Include="Microsoft.AspNetCore.DeveloperCertificates.XPlat" ProjectPath="$(RepoRoot)src\Tools\FirstRunCertGenerator\src\Microsoft.AspNetCore.DeveloperCertificates.XPlat.csproj"  />
@@ -44,7 +45,6 @@
     <ProjectReferenceProvider Include="Microsoft.AspNetCore.Routing" ProjectPath="$(RepoRoot)src\Http\Routing\src\Microsoft.AspNetCore.Routing.csproj" RefProjectPath="$(RepoRoot)src\Http\Routing\ref\Microsoft.AspNetCore.Routing.csproj" />
     <ProjectReferenceProvider Include="Microsoft.AspNetCore.WebUtilities" ProjectPath="$(RepoRoot)src\Http\WebUtilities\src\Microsoft.AspNetCore.WebUtilities.csproj" RefProjectPath="$(RepoRoot)src\Http\WebUtilities\ref\Microsoft.AspNetCore.WebUtilities.csproj" />
     <ProjectReferenceProvider Include="Microsoft.AspNetCore.Html.Abstractions" ProjectPath="$(RepoRoot)src\Html\Abstractions\src\Microsoft.AspNetCore.Html.Abstractions.csproj" RefProjectPath="$(RepoRoot)src\Html\Abstractions\ref\Microsoft.AspNetCore.Html.Abstractions.csproj" />
-    <ProjectReferenceProvider Include="Microsoft.AspNetCore.ApiAuthorization.IdentityServer" ProjectPath="$(RepoRoot)src\Identity\ApiAuthorization.IdentityServer\src\Microsoft.AspNetCore.ApiAuthorization.IdentityServer.csproj" RefProjectPath="$(RepoRoot)src\Identity\ApiAuthorization.IdentityServer\ref\Microsoft.AspNetCore.ApiAuthorization.IdentityServer.csproj" />
     <ProjectReferenceProvider Include="Microsoft.AspNetCore.Identity" ProjectPath="$(RepoRoot)src\Identity\Core\src\Microsoft.AspNetCore.Identity.csproj" RefProjectPath="$(RepoRoot)src\Identity\Core\ref\Microsoft.AspNetCore.Identity.csproj" />
     <ProjectReferenceProvider Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" ProjectPath="$(RepoRoot)src\Identity\EntityFrameworkCore\src\Microsoft.AspNetCore.Identity.EntityFrameworkCore.csproj" RefProjectPath="$(RepoRoot)src\Identity\EntityFrameworkCore\ref\Microsoft.AspNetCore.Identity.EntityFrameworkCore.csproj" />
     <ProjectReferenceProvider Include="Microsoft.Extensions.Identity.Core" ProjectPath="$(RepoRoot)src\Identity\Extensions.Core\src\Microsoft.Extensions.Identity.Core.csproj" RefProjectPath="$(RepoRoot)src\Identity\Extensions.Core\ref\Microsoft.Extensions.Identity.Core.csproj" />

eng/Versions.props

@@ -222,11 +222,11 @@
     <FSharpCorePackageVersion>4.2.1</FSharpCorePackageVersion>
     <GoogleProtobufPackageVersion>3.8.0</GoogleProtobufPackageVersion>
     <GrpcAspNetCorePackageVersion>0.1.22-pre3</GrpcAspNetCorePackageVersion>
-    <IdentityServer4AspNetIdentityPackageVersion>3.0.0-preview3.4</IdentityServer4AspNetIdentityPackageVersion>
-    <IdentityServer4EntityFrameworkPackageVersion>3.0.0-preview3.4</IdentityServer4EntityFrameworkPackageVersion>
-    <IdentityServer4PackageVersion>3.0.0-preview3.4</IdentityServer4PackageVersion>
-    <IdentityServer4StoragePackageVersion>3.0.0-preview3.4</IdentityServer4StoragePackageVersion>
-    <IdentityServer4EntityFrameworkStoragePackageVersion>3.0.0-preview3.4</IdentityServer4EntityFrameworkStoragePackageVersion>
+    <IdentityServer4AspNetIdentityPackageVersion>3.0.0-preview7.33</IdentityServer4AspNetIdentityPackageVersion>
+    <IdentityServer4EntityFrameworkPackageVersion>3.0.0-preview7.33</IdentityServer4EntityFrameworkPackageVersion>
+    <IdentityServer4PackageVersion>3.0.0-preview7.33</IdentityServer4PackageVersion>
+    <IdentityServer4StoragePackageVersion>3.0.0-preview7.33</IdentityServer4StoragePackageVersion>
+    <IdentityServer4EntityFrameworkStoragePackageVersion>3.0.0-preview7.33</IdentityServer4EntityFrameworkStoragePackageVersion>
     <MessagePackPackageVersion>1.7.3.7</MessagePackPackageVersion>
     <MoqPackageVersion>4.10.0</MoqPackageVersion>
     <MonoCecilPackageVersion>0.10.1</MonoCecilPackageVersion>